[IGSMAIL-6598] UNB Launches Atmospheric Correction Service for Space Geodesy Applications

[Richard B. Langley]

Author: Richard Langley

The Department of Geodesy and Geomatics Engineering at the University  
of New Brunswick announces the launch of the UNB Vienna Mapping  
Function (UNB-VMF1) Service. This service provides geodetic-quality  
corrections to the signal propagation delays caused by the troposphere— 
the lowest-most portion of the Earth’s atmosphere—that are experienced  
by radio-based space-geodetic techniques such as GPS, other global  
navigation satellite systems, and very long baseline interferometry.

Although conventional procedures exist for modeling tropospheric  
delays, the new service promises corrections that approach one  
centimeter in accuracy by mathematically tracing the path of the radio  
signals through numerical weather models.

The service is based on the Vienna Mapping Functions developed by the  
Institute of Geodesy and Geophysics at the Vienna University of  
Technology. While tropospheric delay corrections using the mapping  
functions together with data from the European Centre for Medium-Range  
Weather Forecasts are already available, UNB will offer an alternative  
service with some distinctive advantages.

More information is available here:
http://gge.unb.ca/News/2012/2012.html#UNBVMF1

and here:
http://unb-vmf1.gge.unb.ca/

-----------------------------------------------------------------------------
| Richard B. Langley                            E-mail:  
lang at unb.ca         |
| Geodetic Research Laboratory                  Web: http://www.unb.ca/GGE/ 
  |
| Dept. of Geodesy and Geomatics Engineering    Phone:    +1 506  
453-5142   |
| University of New Brunswick                   Fax:      +1 506  
453-4943   |
| Fredericton, N.B., Canada  E3B  
5A3                                        |
|        Fredericton?  Where's that?  See: http:// 
www.fredericton.ca/       |
-----------------------------------------------------------------------------